Hydrate Smarter.
Go Farther.

Two purpose-built formulas. Two distinct jobs. One complete hydration system designed around the demands of endurance.

01 / Foundation
Daily + Training

Essential Electrolytes

Hydrate

Your everyday hydration foundation. Replenish key electrolytes, support fluid balance, and keep hydration simple.

Electrolytes
Sodium, potassium, magnesium and calcium
Support
Vitamins C and D + zinc
Formula
Advanced absorption formula
Purpose
Everyday hydration and training
Essential by design
02 / Performance
Built for the extra mile

Endurance Formula

Perform

Performance hydration built for long efforts. High-sodium electrolytes combine with caffeine, focus support, and taurine for the miles ahead.

Hydration
800 mg sodium, 450 mg potassium and 60 mg magnesium
Energy
100 mg caffeine from green tea extract
Focus
L-theanine, L-tyrosine and Alpha-GPC
Performance
1 g taurine
Purpose-built performance
One System. Two Jobs.

Start with the hydration foundation. Add performance when the miles demand it. HYK gives you the flexibility to match your hydration to the day — instead of forcing one formula to do everything.

01
Hydrate
Replenish key electrolytes and support fluid balance.
02
Perform
Add energy and focus support when training and racing demand more.
03
Go Farther
Purpose-built hydration designed around the extra mile.